The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2026
Filed:
Jan. 15, 2025
Himax Technologies Limited, Tainan City, TW;
Ling-Chi Lin, Tainan City, TW;
Yaw-Guang Chang, Tainan City, TW;
Jia-Ming He, Tainan City, TW;
Zong-You Hou, Tainan City, TW;
HIMAX TECHNOLOGIES LIMITED, Tainan City, TW;
Abstract
A touch driving circuit is provided. The touch driving circuit includes a charge pump, a plurality of regulators, a plurality of digital to analog converters and a switch circuit. The charge pump is configured to output a plurality of currents. The plurality of regulators is coupled to the charge pump, and configured to output a plurality of charging voltages according to the plurality of currents. The plurality of digital to analog converters is coupled to the plurality of regulators, and configured to output a plurality of driving voltages according to the plurality of charging voltages. The switch circuit is coupled to the plurality of digital to analog converters and a touch panel, and configured to output the plurality of driving voltages in a time-sharing manner to form a driving signal for the touch panel.